Improvement in apparatus for raising coal from sunken vessels



new. DUGANH.

improvement in Apparatus for Raising Coal from Sunken Vessels.

" NO. 122,309 Patentedlan.2p.1872.

UNITED STATES PATENT OFFICE.

BEES W. DUGAN, OF CAIRO, ILLINOIS.

I IMPROVEMENT IN APPARATUS FDR RAISING CUAL FRNISUNKEN VESSELS.

Speccation forming part 'of Letters Patent No. 122,309, dated January 2, 1872.

To all whom it 'may concern: 1

Be it known that I, REEs W. DUGAN, of Cairo, in the county of Alexander and State of Illinois, have invented an Apparatus for Raising Goal lfrom Sunlten Vessels, and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawingmakin g part of this speciiication, in which- Figure l is a section taken vertically and longitudinally through the center of the apparatus, showing the upper valve open and the lower valve closed. Fig. 2 is a similar View of the same parts, showing the upper valve closedV and the lower one open.

Similar letters ot' reference indicate corresponding parts in both figures.

This invention relates to an apparatus which is used in combination with a pump for raising coal, sand, &c., from sunken vessels, or from the beds of rivers.

It has been demonstrated by experiment that coal can be drawn up through pipes along with lwater by means of a pump `of any well-known kind. My object is to provide an apparatus from which the coal can be discharged from vided with an inlet-pipe, a, and an outlet-pipe,

b, communicating with the chamber B at all times, and also with the chamber G when the `valve D is open, as shown in Fig. 1. The pipe 'a is made of iiexible material, so that its extremity can be readily moved about to receive the coal.- rIhe pipe b communicates with a pump, so that when the pump is in operation,

water will pass through the box A in the direction indicated by the arrows in both figures of the drawing. To prevent pieces of coal entering the pipe b a screen, g, is applied near the top of the chamber b, which will not materially obstruct the force of the current of water on its way from pipe a to pipe b. Bei low the valve D is another slide-valve, E, which is provided with a handle, e, passing out of the box through a stufting-box, f', and which forms a bottom to the chambers B and C when shut, as shown in Fig. l. Both valves should be water tightwhen shut, for upon the tightness of the apparatus depends the success of its practical workin g.

Operation.

, The apparatus herein described is to be mounted in a suitable place convenient to the coal to be raised, and the flexible pipe c submerged so that its end will be in close relation to the coal. The pipe bis connected to a pump and the valve D shut. The pump is started and the coal with the Water is drawn into the chamber B over the inclined plane c and upon the valve D. through the pipe b to the pump. When chamber B is lilled, which may be indicated by a glass window in box A or by any other suitap ble means, the valve D is opened and the contents of the chamber B emptied upon the lower valve E of chamber C. The valve D is again shut and valve E opened, when the coal will be discharged from the apparatus. In this Way, and by these means the coal is discharged from the apparatus from time to time without stopping the pump.

Having described my invention, I claiml. The combination of valves D and E with chambers B and O and inlet and outlet pipes a b, substantially as and for the purposes described.

2. The screen g, applied .between the pipes a b in chamber B, substantially as described.

BEES W. DUGAN. Witnesses:

W. H. MORRIS, BEN. M. HAGEY. y (82) The water will continue on 

